> Honestly, the 4.5 hours of sleep each day really makes me question the veracity of the story, or at least if it's somehow exaggerated. It's true. I've met p

> Honestly, the 4.5 hours of sleep each day really makes me question the veracity of the story, or at least if it's somehow exaggerated. It's true. I've met people who slept 3 hours a night regularly to make ends meet. They seem and act normal until you try to have a conversation with them or ask them to do something outside their routine or that requires thought. You'd be surprised how much of human social and work behavior comes automatically. You can sleepwalk through modern life and never have to wake up. They were even capable of getting passing grades in university. Even some kinds of learning come mechanically.